<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="img_box">
        <img src="@/assets/image/logo.png" />
      </div>
      <!-- 表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="rules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
            placeholder="请输入密码"
            show-password
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="reset">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { loginRequest } from '@/network/login'

export default {
  data() {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      rules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置表单中的数据
    reset() {
      this.$refs.loginFormRef.resetFields()
    },
    // 点击登录按钮，对表单进行预验证
    login() {
      this.$refs.loginFormRef.validate(async validate => {
        if (!validate) {
          return false
        }
        const res = await loginRequest(this.loginForm)
        // console.log(res)
        // console.log(res.meta)
        // console.log(res.meta.status)
        if (res.meta.status !== 200) {
          return this.$message.error('登录失败')
        }
        this.$message({
          message: '登录成功',
          type: 'success'
        })
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  position: relative;
  height: 100%;
  background-color: #2b4b6b;
}
.login_box {
  position: absolute;
  top: 50%;
  left: 50%;
  // margin-top: -150px;
  // margin-left: -225px;
  transform: translate(-50%, -50%);
  width: 450px;
  height: 300px;
  background-color: #ffffff;
  border-radius: 10px;
  .img_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 1px solid #eee;
    box-shadow: 0 0 10px #dddddd;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  padding: 20px;
  box-sizing: border-box;
  width: 100%;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
